USA TODAY - Feb 11 - 65% of homes with mobile phones have a smartphone, up from 44% in 2011, according to a new Nielsen report. 47% of smartphone owners visit social networks daily. One in five people have tapped into Facebook or Twitter in the bathroom within the last month. Young adults are more likely to do so with 40% of those aged 18-24 using social networks in the bathroom, up from 32% in 2012. Hispanics are leading when it comes to smartphone adoption; 72% of Latinos own smartphones.